It's P=1, I=0 and D=0. Do the default setting again and note the temp the green light flashes, then open the door to let out heat and then the other setting to see the difference. Press and hold set till the red flashing light on the lower right blinks indicating input changes and press the up arrow till 166 and press set. It'll show P and change to 1, then press set, it'll show D, then change to 0, then press set, then it'll show D, then change to 0, then press set, then it'll show AT= 0, no change press set, then itll show T =2 , no change press set and done. This will keep the green light solid (100% output) till 1/2 degree below set point and will quickly coast up past set point where the green light is off. There will be over coasting when preheating empty a few degrees but not with food. The temp will drop and the green light will flash 50% output 1/2 degree below set temp and full output solid green light 1 degree below set point so you'll be a couple degrees around set temp with alternating 100 % output and 50% output vs. the default setting that flashes many degrees below set point so your waiting to preheat/recover. You should get to a preheatef set temp of 275 in 25 -30 minutes without food. Since you weren't around till after an hour you missed how the PID performed at the default setting.